recipes-bsp: barebox: imx6: Support spi boot from emmc modules
recipes-bsp: barebox: imx6: Support spi boot from emmc modules

In case of SPI-NOR boot the rootfs is loaded from the internal boot
source due to the small size of the SPI-NOR. To support this for eMMC
modules change the spi boot script to load the rootfs from eMMC.
Otherwise it attempts to load the rootfs from NAND and will fail.

Signed-off-by: Stefan Riedmueller <c3365f3fb46321e09058054bbbd3cb5c9c2c30f7@phytec.de>
Signed-off-by: Stefan Müller-Klieser <a3e08e35e4a42be768e7d0e76ae1ba321c2a66dd@phytec.de>

PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec